Improvement in stove-pipe elbows



bini-teil 51am @attent @Wine l). J. BIESENBAOH, OF ROCHESTER, YORK.

Letters Patent No. 98,659, dated Januari; l1, 187 0.

IMPROVEMENT IN STOVB-PIPE ELBOWS.

The Schedule referred to in these Letters Patent and making part of thesame4 I, I. J. BInseNAoH, of the city of Rochester, in thecounty ot'Monroe, and State ,of New York, have invented a' certain new and usefulImprovement in Stove-Pipe Eibows, of which the following is a speciication.

These seetimis of" pipe are secured together by casting their contiguousends, l) b, into a n'ietallic ring or head, c, which forms the joint atthe angle.

The operation ot casting the said sections of pipe together is asfollows:

A mould is made of the form of the ring or bead c,

and corresponding in diameter with that of the pipe. v

The ends b I oi' the pipe are Athen made t'o project into the mould asuitable distance, at right angles to each other, and the melted iron(or other suitable metal, if preferred) is run into the mould, vand theX rin, T or bead-c is formed over the joint, with the ends of the pipesecurely cast into the ring.

I prefer t0 leave a narrow space, (I, between the ends b b, as shown iniig. 2, so as to allow the melted ironto pass through and form a beadboth on the inner and outer sides of the pipe, and thus securely embedthe ends into the solid cast-iron ring.

The parts are thus combined in such a manner as to make them verystrong;r and durable, and give the elbow the appearance of being formedof a single piece of metal. There is no liability of the seams becomingseparated, asin the ordinary elbow, land thering or bead c will alsohave an ornamental appearance.

What I claim as my invent-ion, is-

A stove-pipe elbow, having the right-angled seotions A A, securedtogether by casting the contiguous endsl b b into a metallic ring orbead, c, substantially as herein set forth.

In testimony whereof, I hereunto sign my name,

in the presence of two subscribing witnesses. y P. J. BIESENBACH.Witnesses:

J. A. DAVIS, ERED'. A. HATCH.

